Evidence map›Paper›PMID 24453474›Full record

ArticleMolecular vision2014

CFH haplotypes and ARMS2, C2, C3, and CFB alleles show association with susceptibility to age-related macular degeneration in Mexicans.

Alejandra V Contreras, Juan Carlos Zenteno, Juan Carlos Fernández-López, Ulises Rodríguez-Corona, Ramcés Falfán-Valencia, Leticia Sebastian, Fabiola Morales, Daniel Ochoa-Contreras, Alessandra Carnevale, Irma Silva-Zolezzi

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Immunogenetic and Environmental Factors in Age-Related Macular Disease.International journal of molecular sciences · 2024
    Review
  3. Article
  4. Article
  5. Lack of Delta-Sarcoglycan (International journal of molecular sciences · 2019
    Article
  6. Article
  7. Article
  8. Article
  9. Mitochondrial variation and the risk of age-related macular degeneration across diverse populations.Pacific Symposium on Biocomputing. Pacific Symposium on Biocomputing · 2015
    Article
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 2 countries.

Alejandra V ContrerasInstituto Nacional de Medicina Genómica. Mexico City, Mexico.
Juan Carlos ZentenoDepartment of Genetics and Research Unit, Institute of Ophthalmology Conde de Valenciana, Mexico City, Mexico ; Biochemistry Department, Faculty of Medicine, UNAM, Mexico City, Mexico.
Juan Carlos Fernández-LópezInstituto Nacional de Medicina Genómica. Mexico City, Mexico.
Ulises Rodríguez-CoronaInstituto Nacional de Medicina Genómica. Mexico City, Mexico.
Ramcés Falfán-ValenciaLaboratorio HLA, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico.
Leticia SebastianInstituto Nacional de Medicina Genómica. Mexico City, Mexico.
Fabiola MoralesInstituto Nacional de Medicina Genómica. Mexico City, Mexico.
Daniel Ochoa-ContrerasAsociación Para Evitar la Ceguera en México, Hospital "Dr. Luis Sánchez Bulnes," Mexico City, Mexico.
Alessandra CarnevaleInstituto Nacional de Medicina Genómica. Mexico City, Mexico.
Irma Silva-ZolezziNutrition and Health Department, Nestlé Research Center, Lausanne, Switzerland.
Instituto Nacional de Enfermedades Respiratorias · MXNestlé (Switzerland) · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the contribution of genetic variants of complement factor H (CFH), complement component 2 and 3 (C2 and C3), complement factor B (CFB), and age-related maculopathy susceptibility 2 (ARMS2) to age-related macular degeneration (AMD) risk in the Mexican Mestizo population.

methodsAnalysis included 282 unrelated Mexican patients with advanced AMD, 205 healthy controls, and 280 population controls. Stereoscopic fundus images were graded on the Clinical Age-Related Maculopathy System (CARMS). We designed a resequencing strategy using primers with M13 adaptor for the 23 exons of the CFH gene in a subgroup of 96 individuals clinically evaluated: 48 AMD cases and 48 age- and sex-matched healthy controls. Single nucleotide polymorphisms (SNPs) in C3 (Arg80Gly and Pro292Leu), C2 (rs547154), CFB (Leu9His), and ARMS2 (Ala69Ser) were genotyped in all patients, healthy and population controls using TaqMan assay.

resultsAll evaluated individuals were Mexican Mestizos, and their genetic ancestry was validated using 224 ancestry informative markers and calculating F(st) values. The CFH resequencing revealed 19 SNPs and a common variant in the intron 2 splice acceptor site; three CFH haplotypes inferred from individual genotypes, showed significant differences between cases and controls. The risk alleles in C3 (rs1047286, odds ratio [OR]=2.48, 95% confidence interval [CI]=1.64-3.75, p=1.59E-05; rs2230199, OR=2.15, 95% CI=1.48-3.13, p=6.28E-05) and in ARMS2 (rs10490924, OR=3.09, 95% CI=2.48-3.86, p=5.42E-23) were strongly associated with risk of AMD. The protective effect of alleles in C2 (rs547154) and CFB (rs4151667) showed a trend but was not significantly associated after correction for multiple testing.

conclusionsOur results show that ARMS2 and C3 are major contributors to advanced AMD in Mexican patients, while the contributions of CFH, C2, and CFB are minor to those of other populations, reveling significant ethnic differences in minor allele frequencies. We provide evidence that two specific common haplotypes in the CFH gene predispose individuals to AMD, while another may confer reduced risk of disease in this admixed population.

Indexed as

AgedAllelesCase-Control StudiesComplement C2Complement C3Complement Factor BComplement Factor HFemaleGene FrequencyGenetic Association StudiesGenetic Predisposition to DiseaseHaplotypesHumansLinkage DisequilibriumMacular DegenerationMaleARMS2 protein, humanComplement C2Complement C3Complement Factor BComplement Factor HProteins

Identifiers

PMID24453474
PMCPMC3891434
OpenAlexW2141556262

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.